KR101831799B1

KR101831799B1 - Traffic control unit based on modulized functional block

Info

Publication number: KR101831799B1
Application number: KR1020150144232A
Authority: KR
Inventors: 이정준
Original assignee: 모루시스템 주식회사
Priority date: 2014-10-16
Filing date: 2015-10-15
Publication date: 2018-04-04
Also published as: KR20160045030A

Abstract

A traffic signal controller for controlling a traffic light based on real-time traffic information of an intersection is disclosed.
The traffic signal controller
A removable functional block having a plurality of connection pins for interfacing with the outside; And
A connector having a terminal block to which an external signal line is connected integrally and accommodating the detachable functional block;
.

Description

[0001] The present invention relates to a traffic control unit based on a modulized functional block,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic signal controller, and more particularly, to a modular functional block-based traffic signal controller that does not use a backplane.

Various types of intersections and crosswalks are provided to guide pedestrians to cross the road safely, and a traffic light is provided to smoothly control the flow of traffic according to the traffic volume of the vehicle. The traffic light is supplied from a traffic signal controller Or is turned off or off according to the state in which it is cut off.

Here, the traffic signal controller is a device that controls a traffic light based on real-time traffic information of a signal intersection.

The main features of the traffic signal controller are as follows.

1) High reliability is required

: In case of failure, it can lead to traffic accidents and personal injury

2) Durability to the environment is important

: There is a certain characteristic of the operating environment which should be operated for a long time in the poor environment of the roadside (temperature change, humidity, dust, vibration ..)

The traffic signal controller includes various types of unit components having different functions such as a power supply unit, an algorithm control unit, a plurality of power driving and feedback units, a plurality of vehicle detection units, and other device units.

The traffic signal controller is operated at the outdoor intersection where the operating environment is poor. When the fault occurs, it seriously affects the traffic flow of the road. Therefore, the promptness and easiness of the site maintenance have been emphasized.

In this background, the traffic signal controller generally designates each unit component in the form of a functional board capable of being detached and mounted, and is completed by mounting it in a designated slot (SLOT) of a subrack prepared in the traffic signal controller (Backplane) method, which is a method of constructing a backplane.

FIG. 1 shows an appearance of a conventional backplane-type traffic signal controller.

The configuration of the backplane system includes a sub rack that can mount each function board on the front surface of the traffic signal controller and a connector having a plurality of contacts for signal connection with the function board on the rear surface of the sub rack And a line connecting portion (terminal block) for connecting an external traffic signal lamp, a vehicle detector, and the like to the line. The backplane is implemented as a printed circuit board (PCB).

Through the copper foil pattern of the backplane, electrical connection between functional boards is realized, and connection with external signal lines is realized through connecting cables of several strands (usually 100 strands or more) connecting between the backplane and the terminal block.

This backplane method is widely used in the world and has the advantage of completing the field maintenance by simply replacing the function board in the event of a failure.

Another configuration method emphasizing the economical efficiency of the traffic signal controller is to integrate all the functions required by the traffic signal controller in a closed box and to provide a connection (connector) for connecting the connection line from the box to the outside And the like.

2 shows the appearance of the integrated type traffic signal controller.

Figure 3 shows an example of an integrated approach traffic signal controller in an actual operating environment.

Such an integrated system is characterized by being able to provide an economic and compact traffic signal controller without considering the ease of site maintenance.

While the backplane method has important advantages that it is easy to maintain in the field, it passes through several steps (function board - backplane - connection cable - terminal block) in the path from the electrical signal to the outside of the traffic signal controller, There is an increasing difficulty.

In addition, since the path of each external input / output signal line is physically long and the number of electrical contact points is large, there is a high possibility of failure due to signal attenuation (in the case of a vehicle sensor line) and contact failure at the connection point

On the other hand, in the conventional traffic signal controller, since the backplane is made of a printed circuit board, if over current is caused by a lightning strike, an insect, a small animal, etc., a copper plate constituting a signal line or a power line of the printed circuit board may be lost have.

In this case, to replace the backplane of the traffic signal controller installed at the site, the subrack must be disconnected from the subrack, the subrack must be removed from the enclosure, and the entire subrack or the backplane must be replaced.

In this process, it takes a lot of time and manpower to control and replace traffic.

Prior Art Document 1 ... Published Japanese Patent Application No. 10-2012-0138394 (published on December 26, 2012)

Prior Art Document 2: Published Patent Application No. 10-2012-0007152 (2012.01.20.

The present invention relates to a new configuration method of a traffic signal controller and is advantageous in that it is easy to miniaturize and economically obtainable in an integrated system without sacrificing ease of on-site maintenance that can be obtained in the conventional backplane system And to provide a traffic signal controller based on a modularized function block.

It is another object of the present invention to provide a module-based compact traffic signal controller.

According to another aspect of the present invention, there is provided a traffic signal controller comprising:

A traffic signal controller for controlling a traffic light based on real-time traffic information of an intersection,

A functional block having other functional blocks and a plurality of connection pins for interfacing with the outside; And
The functional block includes a function execution unit, a power supply unit, a communication unit, and a pin connection unit.

A connector which is integrally provided with a terminal block to which an external signal line and an internal signal line connecting functional blocks are connected and which is coupled to the plurality of connection pins of the functional block;

And a control unit.

The functional block

A function execution unit for performing a function assigned to the function block;
Wherein the function performing unit includes a setting unit, a control unit, and a function input / output circuit unit,

A communication unit for performing communication between the function performing unit and another function module;

A pin connection unit connecting the function performing unit and the communication unit to the connection pin;

A power supply unit for supplying power to the function performing unit and the communication unit;

.

Here, the communication unit is an uplink communication unit that performs communication with an upper functional block or a downlink communication unit that performs communication with a lower functional block.

Here, the communication unit performs serial communication.

Here, the function performing unit

A setting unit having setting information for performing a function assigned to the function block;

A function input / output circuit unit connected to an external signal line to perform a function assigned to the function block;

A control unit for controlling the functional input / output circuit unit based on setting information set in the setting unit;

.

According to another aspect of the present invention, there is provided a modular functional block based traffic signal controller,

A loop vehicle detection block connected to a loop detector installed at a signal intersection to detect traffic of the vehicle;

A power and interface driver block that performs power and internal communication interfaces;

A control block for generating a signal lamp flashing command in accordance with the vehicle traffic information detected through the loop vehicle detection block;

A load switch block for outputting a signal lamp control signal under the control of said control block;

.

here,

A pedestrian switch input block for inputting a pedestrian operation; And

A manual operation input block for inputting a manual operation;

Further comprising:

The control block

A pedestrian operation input inputted through the pedestrian switch input block, and a manual operation input inputted through the manual operation input block, a signal lamp flashing command is generated based on the vehicle traffic information detected through the loop vehicle detection block .

Here, it is preferable that the control block performs a function of analyzing a feedback signal and coping with a fault situation.

Here, it is preferable to further include a main control block for setting a reference time for operating the traffic signal controller.

Here, the main control block may include an uplink communication unit connected to an upper traffic signal logic controller.

Here, the main control block performs SPI (Serial-Parallel Interface) with the control block.

Here, each of the loop vehicle detection block, the power and interface driver block, the control block, and the load switch blocks includes a plurality of connection pins for interfacing with external and other blocks,

A power and interface driver block, a control block, a load switch block, and a terminal block to which external signal lines are connected, are integrally provided, and the loop vehicle detection block, the power and interface driver block, A plurality of connectors each accommodating a switch block;

And further comprising:

The traffic signal controller according to the present invention can be installed in a small housing, 2) easy on-site maintenance, 3) easy to economically improve, and 4) improved in reliability (failure due to remarkably reduced number of contact points Reduction of the factor).

The traffic signal controller according to the present invention has the effect of reducing the number of internal balloons and contacts.

For this reason,

1) Improved reliability (Reduction of the cause of failure by reducing the number of contacts)

2) Space efficiency increase (controller size, urban space)

3) Improvement of maintenance convenience (easy installation and removal of module)

4) Improvement of economy (maintenance cost reduction, installation cost reduction)

5) Improved scalability (deviating from slot constraint)

And the like.

In addition, the traffic signal controller of the present invention does not require much time and manpower to replace the conventional backplane system, and also has a significant burden of traffic control.

FIG. 1 shows an example of a conventional backplane-type traffic signal controller.
2 shows an example of an integrated type traffic signal controller.
Figure 3 shows an example of an integrated approach traffic signal controller in an actual operating environment.
FIG. 4 illustrates a method of configuring a traffic signal controller according to the present invention.
Fig. 5 shows the structure of a detachable functional block according to the present invention.
6 shows an example of the appearance of a removable functional block which is a constituent element of the present invention (an example of a power driving and a feedback part).
FIG. 7 is a side view showing a configuration diagram of a modular functional block based traffic signal control unit according to the present invention.
8 is a front view showing a configuration of a traffic signal controller according to the present invention.
FIG. 9 shows a block diagram of a traffic signal controller according to the present invention.
FIGS. 10 to 12 show a comparison of the functions of the traffic signal controller and the Korean standard controller according to the present invention.
Fig. 13 shows the appearance and internal configuration of the MCB shown in Fig.
Fig. 14 shows the appearance and internal configuration of the PDB shown in Fig.
Fig. 15 shows the appearance and internal configuration of the CTB shown in Fig.
Fig. 16 shows the appearance and internal configuration of the LSB shown in Fig.
Fig. 17 shows the appearance and internal configuration of the PIB shown in Fig.
Fig. 18 shows the appearance and internal configuration of the MIB shown in Fig.
Fig. 19 shows the appearance and internal configuration of the LDB shown in Fig.
20 shows a centralized operational conceptual diagram of a traffic signal controller according to the present invention.
FIG. 21 shows a distributed operational conceptual diagram of a traffic signal controller according to the present invention.
22 shows the appearance of the integrated platform traffic signal interlocking board.
23 to 24 schematically show the effect achieved by the traffic signal controller according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 illustrates a method of configuring a traffic signal controller according to the present invention.

The present invention is a method of constructing a signal connecting step using an existing function board-backplane-connection cable-terminal block by referring to a configuration of a detachable functional block-terminal block.

Each functional block has a function corresponding to an existing function board and has a miniaturized module form having a plurality of connection pins which can be directly mounted on a connector integrally provided with external signal lines and internal signal line connecting means Lt; / RTI >

The external signal line is for inputting a signal from a loop detector embedded in the road, a signal from a pedestrian switch, and the like to input or output a signal provided from the outside of the traffic signal controller.

On the other hand, the internal signal line means a signal or a power supply signal to be transferred between functional blocks.

The present invention has a compact structure by allowing an external signal and an internal signal to flow in and out through a terminal block configured to be integrated with a connector.

Examples of functional blocks include an integrated controller traffic signal module, a main control block (MCB), a loop vehicle detection block (LDB), a pedestrian input block (PIB), a pedestrian switch input block (PDB) Power and interface driver block, CTB (ConTroller Block), LSB (Load Switch Block), MIB (Manual Input Block), and modem have.

a. Integrated Controller Traffic Signal Module

- Data exchange with master controller of integrated controller

- Central function of traffic signal part

- Sensor information processing and signal time management

b. MCB (Main Control Block)

- Data exchange of vehicle communication information and signal generation time by serial communication with integrated controller traffic signal module

- Signal operation with CTB and serial communication

- Performs some functions of integrated controller traffic signal module when installed alone

c. LDB (Loop vehicle detection block)

- Streamlined LOOP vehicle detector

- Built-in 4 channel detection circuit

- LOOP single wire detection

d. Pedestrain Input Block (PIB)

- Generate pedestrian switch input information

- Built-in 4Channel pedestrian input circuit

e. PDB (Power & Interface Driver Block, Power and Interface Driver Block)

- Function blocks such as LSB, LDB, PIB, etc. via hybrid bus Power supply and communication

- CTB and SPI communication

f. CTB (ConTroller Block, control block)

- Signal exchange with MCB and serial communication

- Feedback signal analysis and traffic light flashing command generation

g. LSB (Load Switch Block)

- Signal light output function (SSR)

- Sync feedback function (feedback)

- Self abnormality detection and Flash

h. MIB (Manual Input Block, manual operation input block)

- 6 manual switch input information generation

The main body of the manual operation input

i. modem

If the upper system is a center, it is located at a remote location, so it is necessary to communicate through a modem. In addition to the modem, means such as optical communication and wireless communication may be used.

Fig. 5 shows the structure of a detachable functional block according to the present invention.

Referring to FIG. 5A, the traffic signal controller according to the present invention includes a function block 52 and an external signal line connection connector 54.

The functional block 52 has a case 52a, another functional block, and a plurality of connection pins 52b for interfacing with external devices. Circuit blocks (not shown) for achieving the function of the function block 52 are housed inside the case 52a. The plurality of connection pins 52b are for introducing an external signal into the function block 52 or for externally outputting a signal generated in the function block 52 or for exchanging signals between functional blocks. The external signal line connection connector 54 includes a case 54a, a plurality of insertion grooves 54a for receiving and electrically connecting the plurality of connection pins 52a, a terminal block 54c to which the external signal line and the internal signal line are connected, . The functional block 52, the external signal line, the functional block 52 and other functional blocks are connected to each other through the terminal block 54c, the insertion groove 54b, and the connection pin 52b.

The traffic signal controller according to the present invention has a connector connection structure in order to modularize the function board of the traffic signal controller, which has been implemented in the form of a board, through a highly compact design and to maximize space efficiency in the housing.

On the other hand, in the case 52a of the functional block 52, circuit blocks for achieving the function of the functional block 52 are accommodated. Referring to Figure 5 (b)

A function performing unit 52c for performing a function assigned to the function block,

A communication unit 52d for performing communication between the function performing unit and another functional block,

A pin connecting portion 52e for connecting the function performing portion and the communication portion to the connection pin,

And a power supply unit 52f for supplying power to the functional unit and the communication unit.

The function execution unit 52c includes a setting unit 52c-1 having setting information for performing a function assigned to the function block 52, a function unit 52c-1 connected to the external signal line, And a control unit 52c-3 for controlling the functional input / output circuit unit on the basis of the setting information set in the function input / output circuit unit 52c-2 and the setting unit 52c-1.

The communication unit 52d performs serial communication and performs downlink communication or uplink communication according to the type of the function block 52. [

Fig. 6 shows an example of the appearance of a detachable functional block, which is an element of the present invention, and shows an example of a power driving and a feedback unit.

Referring to FIG. 6, a load switch block (LSB, Load Switch Block includes a case 52a, a front cover 62c, a display window 62d, and a switch 65e. The connecting pin 52b is provided at the bottom of the case 52a.

FIG. 7 is a side view showing a configuration diagram of a modular functional block based traffic signal controller according to the present invention.

Referring to FIG. 7, a plurality of function blocks 52 and a plurality of external signal line connection connectors 54 are arranged in a matrix. A plurality of external signal line connecting connectors 54 are supported by supporters 56 and the respective functional blocks 52 are mounted on corresponding external signal line connecting connectors 54.

8 is a front view showing a configuration of a modular functional block based traffic signal controller according to the present invention.

Referring to FIG. 8, it can be seen that each of the functional blocks 52 is inserted into the external signal line connector 54 and aligned on the terminal block 56.

Figure 9 shows a block diagram of a modular functional block based traffic signal controller according to the present invention.

9, the modular functional block-based traffic signal controller 90 includes a main control block (MCB) 92, a CTB (ConTroller Block) 94, a PDB an interface driver block 96, a loop vehicle detection block 98, an LSB (Load Switch Block) 100, and an optional module 102 .

Here, the modularized functional block means that each functional block has an internal structure similar to each other and can function as another functional block by replacing an internal circuit block in some cases.

The MCB 92 exchanges data with the integrated controller traffic signal module 104 through the serial communication, such as detection information and signal time, and exchanges signal operation information and signal light blinking information with the CTB 94 in serial communication.

Here, the integrated controller traffic signal module 104 performs data exchange with a master controller of an integrated controller (not shown), a traffic signal central calculation function, detector information processing, and signal time management. A plurality of MCBs 92 may be connected to the integrated controller traffic signal module 104. When only the MCB 92 is solely installed without being connected to the integrated controller traffic signal module 104, the MCB 92 partially performs the function of the integrated controller traffic signal module.

The CTB 94 exchanges signal operation information and signal light blinking information with the MCB 92 in serial communication, and performs feedback signal analysis and blink command generation.

Here, the feedback signal is for responding to a failure of a signal lamp driving unit (for example, a load switch block) that significantly affects the safety of a signal or an error of a critical signal lamp (GREEN, RED) output depending on a line failure condition.

A signal for detecting the power output of AC or DC for turning on the lamp by the load switch and judging whether the control is normal or not is referred to as a feedback signal. This feedback signal is obtained by voltage or current detection.

The PDB 96 performs power supply and communication with various functional blocks such as the MCB 92, the CTB 94, the LDB 98, and the LSB 100 via the hybrid bus. In particular, it performs SPI (Serial-Parallel Interface) communication with the CTB 94. Hybrid buses refer to buses that can share power and data transfer.

The LDB 98 is a streamlined loop vehicle detection block, and includes a 4-channel detection circuit.

The LSB 100 performs signal light output function (SSR), registered signal feedback function, self abnormality detection and flash (flash, fast blink).

Referring to FIG. 9, a power supply unit and a serial communication unit are provided between the detachable functional blocks through the minimum wiring corresponding to the inter-board signal connection function provided in the existing backplane. Signal lines necessary for transmitting and receiving power lines, external signal lines, and internal signals of the functional blocks are connected to the functional block 52 through the connection pin 52b and the external signal line connection connector 54 shown in FIG.

FIGS. 10 to 12 show a comparison of the functions of the traffic signal controller and the Korean standard controller according to the present invention.

The compact traffic signal controller according to the present invention has been developed for the purpose of enhancing the usability of the integrated controller by integrating the components necessary for traffic signal control in a small enclosure that is independently divided.

Due to the low international awareness of traffic management algorithms, the export competitiveness of traffic signal systems in Korea has not achieved comparative advantages in advanced traffic signal systems such as Europe. In the middle and low price markets of developing countries, It is difficult to secure price competitiveness for the products of Korea. Therefore, there is a urgent need for strategic review.

Domestic specification of traffic signal controller is one of the most important factors of export difficulties because it is difficult to ship because it is implemented at economical price despite considerable field stability and various functions.

The compact traffic signal controller according to the present invention has been developed with an emphasis on inventing and implementing a new traffic signal controller configuration method capable of providing export competitiveness based on experience of rich signal operation in the domestic market in consideration of such realistic contents.

The components required for traffic signal control according to the present invention include a power control element for driving a traffic light, a vehicle detection element for collecting real-time traffic information of a signal intersection, a manual control function for manually controlling a signal at an intersection Input elements, and pedestrian input elements for pedestrian switch input.

It is designed to have FEEDBACK means in order to cope with the failure of the signal lamp driving part (for example, load switch block) or the critical signal light (GREEN, RED) output depending on the fault condition of the line, And the function of stopping the operation of the signal and providing the flicker output.

The compact type traffic signal controller 90 according to the present invention has a difficulty that 50 to 100 strands of power line and loop signal line should be drawn into the enclosure due to a large number of registered outputs and a loop detector lead- In order to improve it, it is developed to have a function capable of distributed operation.

Despite the inherent characteristics of the traffic signal controller, which must be configured to include a large number of line connection terminals, power control elements, circuits with unit functions such as vehicle detection elements, etc., it meets the requirements to be accommodated in a compact enclosure The shape of the space - saving functional block of the new structure for the unit element is designed and applied.

Functional blocks are considered to be capable of centralized and decentralized operation, and effective block-to-block communication means have been developed and applied.

The design of the compact type traffic signal controller sets the environmental specifications so that stable operation can be maintained in the outdoor environment where the environment is poor, and the operation stability is secured through the debug process through the chamber test.

① Methodology of implementation of compactness of traffic signal controller

A new implementation method of the traffic signal controller considering the centralized and decentralized installation is as follows. First, the efficient communication method and the mechanism method are designed to design the highly compacted functional block, and the specification of each functional block is defined Respectively.

The unit function block corresponding to the existing domestic CONT / LSU / LOOP has been developed as a unit block through a highly compact design and integrated into a compact type traffic signal controller.

Function blocks such as LSU / LOOP have been developed to enable distributed operation that can be installed inside or around the traffic lights installed in each pylon of signal intersection.

The unit functional blocks have been developed to include instrument configurations including consideration of ease of site maintenance and space efficiency.

The design and implementation of the protocol for the communication operation between each function block was carried out.

It was developed in consideration of overseas electrical / operational environment / economical aspects for the purpose of exporting overseas.

② Basic specifications

- Power supply: AC 95 ~ 135V / AC 190 ~ 250V

- Device specifications: Number of signal outputs ... 6 x 6 = 36 points

: Number of loop detection channels ... 4 x 6 = 24 points

: Number of walking inputs ... 4 x 1 = 4 points

: Number of manual and armature opening and closing inputs ... 6 points

: Operating temperature range ...- 34 ~ +74

- Function of device: Signal drive function ... LSU function block is controlled to perform traffic signal output drive function

: Signal monitoring function ... Real-time monitoring of registered output results through LSU function block

: Upper system linkage function ... perform signal operation function through upper system linkage

: Detection information collecting function ... LOOP function collecting function

- Instrument SIZE: Basic type housing type ... 400/270/200 (mm)

: Slim type housing type ... 280/270/200 (mm)

: Support type for pendant type ... 280/270/200 (mm)

③ To present a mechanism alternative for functional block implementation

In the conventional case, the function block of the traffic signal controller, which was implemented in the form of a board, is blocked by a highly compact design, and a connector connection structure including a consideration for maximizing space efficiency in the housing is proposed.

A methodology for developing a compact type traffic signal controller according to the present invention and a new mechanism alternative for developing a basic specification and function block compactation will be described below.

1) MCB (Main Control Block) (see Fig. 13)

- Subject of signal control

- Initial operation function: Red or yellow signal lamp flashes from the moment the power is turned on until the completion of the booting

- Time setting function: Time setting function which is the basis of operation

- Manual control function: Manual control function through sub-system linkage

- TBC control function: Time base control function by TOD Table

- Sensing control function: Sensing control function by using information input of sensor such as LOOP

- Emergency control function: Flicker output function in case of abnormal situation

- Basic probe data processing function: LOOP First processing function for sensor output information

2) Power & interface Driver Block (see Fig. 14)

- Power and internal communication interface driver

- Input power specification: DC 5 ~ 24V

- CONT module connection: SPI, 1Port

- Number of downstream output ports: 3 Port (LSU, LOOP, PED & Option)

- Signal specification of downstream output port: Hybrid I / O (Positive and Negative, Power supply and communication)

- Emergency control function: FLASH instruction

- PIN CONFIG: UP-CONN ... SDC / SGGND / C-MOSI / C-MISO / C-SCK

: BT-CONN ... DR-P1 / DR-N1 / DR-P2 / DR-N2 / DR-P3 /

③ CTB (ConTroller Block) (see Fig. 15)

- Subject of traffic signal physical control

- Input power specification: DC 5 ~ 24V

- Implement top and bottom system linkage function

- Upper system linkage (linking upper traffic signal logic controller): Serial RS-232, 1Port

- Sub-system linkage (subordinate function module linkage): SPI, 1 Port - DRV connection

- Analysis of feedback signal and response of fault situation (FLASH command to LSU)

- PIN CONFIG: UP-CONN ... DC / SGGND / C-MOSI / C-MISO / C-SCK

: BT-CONN ...- TXD / U-RXD / U-GND / DI-1 / DI-2 / DI-GND

(4) LSB (Load Switch Block) (see Fig. 16)

- Main part of signal register power control

- Number of output points: 6 points

- Output method: AC 95 ~ 135V / AC 190 ~ 260V

- Output current capacity: 1.5A / circuit, 5A / module

- Feedback information production for real-time monitoring of output signal

- Self-fault detection or self-driven FLASH based on command

-PIN CONFIG: UP-CONN ... DR-P1 / DR-N1 / ACI-P / ACI-N / ACO-N

: BT-CONN ... PR (R1) / PG (Y1) / R (G1) / Y (R2) / A (Y2) / G

(5) Pedestrain Input Block (PIB) (see FIG. 17)

- pedestrian switch input subject section

-4 Channel Pedestrian Input Interface

-PIN CONFIG: UP-CONN ... DR-P1 / DR-N1 / FG / PA-4 / PB-4

: BT-CONN ... PE-1A / PE-1B / PE-2A / PE-2B / PE-3A / PE-3B

⑥ MIB (Manual Input Block) (see Fig. 18)

- the main body of the manual operation input

-6 Point Manual Switch Input Interface

-PIN CONFIG: UP-CONN ... DR-P1 / DR-N1 / FG / PP-7 / PP-COM

: BT-CONN ... PP-1 / PP-2 / PP-3 / PP-4 / PP-5 / PP-6

- Corresponding function: PP-1 ... Manual / Automatic

: PP-2 ... manual progression

: PP-3 ... Flashing / Normal

: PP-4 ... Disassociate

: PP-5 ... ON / OFF

: PP-6 ... Shaft closing

⑦ LDB (Loop vehicle detector - 4ch) (see Fig. 19)

- Streamline loop vehicle detection function subject

-4 Channel loop vehicle detector

- Loop break line situation determination

-PIN CONFIG: UP-CONN ... DR-P2 / DR-N2 / FG / LA-4 / LB-4

: BT-CONN ... LA-1 / LB-1 / LA-2 / LB-2 / LA-3 /

The traffic signal controller connection technology according to the present invention can be classified into 1) development of integrated platform traffic signal interworking technology and 2) development of compact type traffic signal controller for export.

20 shows a centralized operational conceptual diagram of a traffic signal controller according to the present invention.

Centralized operation means that each functional block of the traffic signal controller is installed in one housing and each input or output is connected to signal register, loop head and pedestrian input switch and operated.

FIG. 21 shows a distributed operational conceptual diagram of a traffic signal controller according to the present invention.

Distributed operation means that I / O functional blocks such as LSB, LDB, MIB except for common parts such as MCB and CTB among the functional blocks of the traffic signal controller are installed and connected to signal registers, loop heads, pedestrian input switches, etc. .

22 shows the appearance of the integrated platform traffic signal interlocking board.

Details of development of integrated platform traffic signal interworking technology are as follows.

Development of integrated platform traffic signal interlocking board HARDWARE

- Specification: Embedded board with integrated controller common specification

- Board Size: 4U / 8HP / 120mm

- Power source: DC 5V single power

- LAN Port: 1 Port ... Link to upper system

- Serial Port: 1 Port ... Connect subsystem

- Serial Port: 1 Port ... (Reserved)

Claims

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A traffic signal controller for controlling a traffic light based on real-time traffic information of an intersection,
A functional block having other functional blocks and a plurality of connection pins for interfacing with the outside;
Wherein the functional block includes a function performing unit, a power supply unit, a communication unit, and a pin connecting unit,
The communication unit performing communication between the function performing unit and another functional module, and performing serial communication;
Wherein the communication unit comprises: a downlink communication unit for performing communication with an uplink communication unit or a lower functional block for communicating with an upper functional block;
The function performing unit and the pin connecting unit connecting the communication unit and the connection pin; And
A power supply unit for supplying power to the function performing unit and the communication unit;
A connector having a terminal block to which an external signal line and an internal signal line connecting the functional blocks are connected, and which is coupled to a plurality of connection pins of the functional block;
Wherein the function performing unit includes a setting unit, a control unit, and a function input / output circuit unit,
Wherein the setting unit has setting information for performing a function assigned to the function block,
The functional input / output circuit unit is connected to an external signal line to perform a function assigned to the functional block,
The control unit controlling the functional input / output circuit unit based on setting information set in the setting unit;
Wherein the functional block is mountable and replaceable by attaching / detaching the connector.

delete

A traffic signal controller for controlling a traffic light based on real-time traffic information of an intersection,
And a main control block for setting a reference time for operating the traffic signal controller,
Wherein the main control block includes an uplink communication unit linked with an upper traffic signal logic control unit,
The main control block performs SPI (Serial-Parallel Interface) with the control block,
The loop vehicle detection block, the power supply and interface driver block, the control block, and the load switch blocks each have a plurality of connection pins for interfacing with external and other blocks,
A terminal block corresponding to the loop vehicle detection block, the power supply and interface driver block, the control block, and the load switch block, each of which is connected to an external signal line,
A plurality of connectors respectively receiving the loop vehicle detection block, the power supply and interface driver block, the control block, and the load switch block;
Wherein the loop vehicle detection block is connected to a loop sensor installed at a signal intersection to sense traffic of the vehicle,
The power and interface driver block performs power and internal communication interfaces,
The control block generates a signal lamp flashing command in accordance with the vehicle traffic information detected through the loop vehicle detection block,
In addition, the control block generates a signal lamp flashing command according to the vehicle traffic information detected through the loop vehicle detection block, the pedestrian operation input inputted through the pedestrian switch input block, and the manual operation input inputted through the manual operation input block ,
The control block performs a function of analyzing a feedback signal and coping with a fault situation,
A load switch block for outputting a signal lamp control signal under the control of the control block;
A pedestrian switch input block for inputting an operation of a pedestrian;
And a manual operation input block for inputting a manual operation.